JP2011026653A - Hardening apparatus - Google Patents

Hardening apparatus Download PDF

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JP2011026653A
JP2011026653A JP2009172593A JP2009172593A JP2011026653A JP 2011026653 A JP2011026653 A JP 2011026653A JP 2009172593 A JP2009172593 A JP 2009172593A JP 2009172593 A JP2009172593 A JP 2009172593A JP 2011026653 A JP2011026653 A JP 2011026653A
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chamber
quenching
refrigerant
partition door
heating
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Noriyuki Matsumoto
則幸 松本
Katsunori Ishihama
克則 石浜
Shunsuke Maruyama
俊介 丸山
Shinobu Inuzuka
忍 犬塚
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Daido Steel Co Ltd
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Daido Steel Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a hardening apparatus in which the suitable hardening treatment with water-coolant can be applied while preventing the atmospheric pollution and the wearing of members in a heating chamber. <P>SOLUTION: The heating chamber 2 for applying a heat-treatment to a treating material and a hardening chamber 4 arranged with a water-tank part 41 for applying the hardening treatment by dipping the treating material applied with the heat-treatment, are provided, and a coolant shut-off chamber 3 is arranged between the heating chamber 2 and the hardening chamber 4. Further, this coolant shut-off chamber 3 can be shut off with respect to the heating chamber 2 and the hardening chamber 4, respectively with boundary doors 53 and 54, and a heater 31 for heating the coolant shut-off chamber 3, a pump-unit 65 for exhausting the gas in the coolant shut-off chamber 3, are arranged. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は焼入装置に関し、特に焼入用冷媒として水を使用した焼入装置に関する。   The present invention relates to a quenching apparatus, and more particularly to a quenching apparatus that uses water as a quenching refrigerant.

焼入用冷媒としては従来、油（鉱物油）が多用されている。これは、冷却歪を小さくすることが容易である等の理由による。一方、上記冷媒として、冷却能が大きく、安価で、扱いが容易な水を使用したいという要求は強く、特に真空浸炭した製品（被処理材）は冷却能に優れた水による焼入れが望まれている。   Conventionally, oil (mineral oil) has been frequently used as a quenching refrigerant. This is because it is easy to reduce the cooling distortion. On the other hand, there is a strong demand to use water that has a large cooling capacity, is inexpensive, and is easy to handle as the above-mentioned refrigerant. In particular, quenching with water having excellent cooling capacity is desired for vacuum carburized products (materials to be treated). Yes.

なお、特許文献１には、焼入用冷媒として水を使用し、被処理材が投入される領域の水を、雰囲気ガスを巻き込むような流れにして、焼入れの際に生じる水蒸気が焼入装置内を汚染することが無いようにした焼入装置が提案されている。   In Patent Document 1, water is used as a quenching refrigerant, and water in an area where a material to be treated is introduced is made to flow so as to enclose an atmospheric gas, and water vapor generated during quenching is quenched. A quenching device has been proposed in which the interior is not contaminated.

特開２００２−９７５２０JP2002-97520

ところで、焼入用媒体として水を使用した場合の大きな問題として、従来の焼入装置では、前の処理サイクルでの被処理材投入時に生じ焼入室内に充満した水蒸気が、仕切扉を開けて次の被処理材を焼入室に搬入する際にこれに隣接する加熱室内に侵入してその雰囲気を汚染するとともに、水蒸気中の酸素が加熱室内に設けたカーボンヒータやカーボン繊維を酸化損耗させるという問題があった。   By the way, as a big problem when water is used as the quenching medium, in the conventional quenching apparatus, the water vapor generated when the material to be treated in the previous treatment cycle is charged opens the partition door. When the next material to be treated is carried into the quenching chamber, it enters the heating chamber adjacent to it and pollutes the atmosphere, and oxygen in water vapor oxidizes and wears the carbon heater and carbon fiber provided in the heating chamber. There was a problem.

そこで、本発明はこのような課題を解決するもので、加熱室内の雰囲気汚染や部材の損耗を防止して水冷媒による好適な焼入処理を可能とした焼入装置を提供することを目的とする。   Therefore, the present invention solves such problems, and an object of the present invention is to provide a quenching apparatus capable of preventing the atmospheric contamination in the heating chamber and the wear of members and performing a suitable quenching process with a water refrigerant. To do.

上記目的を達成するために、本発明では被処理材を加熱処理する加熱室（２）と加熱処理した被処理材を水冷媒で焼入れ処理する焼入室（４）とを備え、加熱室（２）と焼入室（４）の間に冷媒遮断室（３）を設けるとともに、当該冷媒遮断室（３）を第１仕切扉（５３）および第２仕切扉（５４）によってそれぞれ加熱室（２）および焼入室（４）と遮断可能となし、かつ冷媒遮断室（３）を加熱する加熱手段（３１）と、冷媒遮断室（３）を排気する排気手段（６５）を設ける。   In order to achieve the above object, the present invention includes a heating chamber (2) for heat-treating a material to be treated and a quenching chamber (4) for quenching the heat-treated material with a water refrigerant. ) And the quenching chamber (4), the refrigerant blocking chamber (3) is provided, and the refrigerant blocking chamber (3) is heated by the first partition door (53) and the second partition door (54), respectively. Further, a heating means (31) that can be shut off from the quenching chamber (4) and that heats the refrigerant shut-off chamber (3) and an exhaust means (65) that exhausts the refrigerant shut-off chamber (3) are provided.

本発明において、第２仕切扉を開けて冷媒遮断室から焼入室へ被処理材を搬送した際に、焼入室から冷媒遮断室へ水蒸気が侵入するが、第１仕切扉を閉鎖しておけば、加熱室へ水蒸気が侵入することはない。冷媒遮断室へ侵入した水蒸気は加熱手段によってその凝縮が防止されるとともに排気手段によって装置外へ排出させられる。したがって、その後に第１仕切扉を開放しても水蒸気が加熱室へ侵入することはない。   In the present invention, when the material to be treated is transferred from the refrigerant shut-off chamber to the quenching chamber by opening the second partition door, water vapor enters the refrigerant shut-off chamber from the quenching chamber, but if the first partition door is closed, Water vapor does not enter the heating chamber. The water vapor that has entered the refrigerant shut-off chamber is prevented from condensing by the heating means and exhausted to the outside by the exhaust means. Therefore, even if the first partition door is subsequently opened, water vapor does not enter the heating chamber.

焼入装置は、被処理材を加熱処理する加熱室（２）と加熱処理した被処理材を油冷媒で焼入れ処理する焼入室（４）とを備え、加熱室（２）と焼入室（４）の間に冷媒遮断室（３）を設けるとともに、当該冷媒遮断室（３）を第１仕切扉（５３）および第２仕切扉（５４）によってそれぞれ加熱室（２）および焼入室（４）と遮断可能となし、かつ冷媒遮断室（３）を冷却する冷却手段（３２）と、冷媒遮断室（３）で凝縮された油を排出する油排出路（３３）を設ける構成とすることもできる。   The quenching apparatus includes a heating chamber (2) for heat-treating the material to be treated and a quenching chamber (4) for quenching the heat-treated material with an oil refrigerant, and the heating chamber (2) and the quenching chamber (4). ) Between the heating chamber (2) and the quenching chamber (4) by the first partition door (53) and the second partition door (54), respectively. The cooling means (32) for cooling the refrigerant blocking chamber (3) and the oil discharge passage (33) for discharging the oil condensed in the refrigerant blocking chamber (3) may be provided. it can.

このような構成において、第２仕切扉を開けて冷媒遮断室から焼入室へ被処理材を搬送した際に、焼入室から冷媒遮断室へ油蒸気が侵入するが、第１仕切扉を閉鎖しておけば、加熱室へ油蒸気が侵入することはない。冷媒遮断室へ侵入した油蒸気は冷却手段によって凝縮させられ、油排出路を経て装置外へ排出させられる。したがって、その後に第１仕切扉を開放しても油蒸気が加熱室へ侵入することはない。   In such a configuration, when the material to be treated is transferred from the refrigerant shut-off chamber to the quenching chamber by opening the second partition door, oil vapor enters the refrigerant shut-off chamber from the quenching chamber, but the first partition door is closed. If so, oil vapor will not enter the heating chamber. The oil vapor that has entered the refrigerant shut-off chamber is condensed by the cooling means and discharged outside the apparatus through the oil discharge path. Therefore, oil vapor does not enter the heating chamber even if the first partition door is subsequently opened.

上記カッコ内の符号は、後述する実施形態に記載の具体的手段との対応関係を示すものである。   The reference numerals in the parentheses indicate the correspondence with specific means described in the embodiments described later.

以上のように、本発明の焼入装置によれば、加熱室内の雰囲気汚染や部材の損耗を生じることなく水冷媒による好適な焼入処理を行なうことができる。   As described above, according to the quenching apparatus of the present invention, it is possible to perform a suitable quenching process with a water refrigerant without causing atmospheric contamination in the heating chamber or wear of members.

本発明の一実施形態を示す焼入れ装置の全体概略断面図である。1 is an overall schematic cross-sectional view of a quenching apparatus showing an embodiment of the present invention. 参考例を示す焼入れ装置の全体概略断面図である。It is a whole schematic sectional drawing of the hardening apparatus which shows a reference example.

（実施形態）
図１には焼入装置の全体構成を示す。図１において、焼入装置は前室１、加熱室２、冷媒遮断室３、焼入室４を備えている。前室１は仕切扉５１によって大気と遮断可能であり、また仕切扉５２によって加熱室２と遮断可能である。加熱室２と冷媒遮断室３との間は仕切扉５３によって遮断可能となっており、冷媒遮断室３と焼入室４は仕切扉５４によって遮断可能である。焼入室４は仕切扉５５によって大気と遮断可能となっている。 (Embodiment)
FIG. 1 shows the overall configuration of the quenching apparatus. In FIG. 1, the quenching apparatus includes a front chamber 1, a heating chamber 2, a refrigerant blocking chamber 3, and a quenching chamber 4. The front chamber 1 can be blocked from the atmosphere by the partition door 51, and can be blocked from the heating chamber 2 by the partition door 52. The heating chamber 2 and the refrigerant shut-off chamber 3 can be shut off by a partition door 53, and the refrigerant shut-off chamber 3 and the quenching chamber 4 can be shut off by a partition door 54. The quenching chamber 4 can be blocked from the atmosphere by a partition door 55.

前室１と加熱室２は途中に真空弁６２，６３を介設した排気管６４によって排気用ポンプユニット６１に連結されている。また、冷媒遮断室３は途中に真空弁６６を介設した排気管６７によって排気手段たる排気用ポンプユニット６５に連結されている。前室１内には被処理材を載置し受け渡すための昇降台１１が設置されている。また、加熱室２には被処理材を加熱するための公知構造のヒータ２１が設置されている。さらに冷媒遮断室３の室壁には後述のように室内を昇温するためのヒータ３１が設置されている。   The front chamber 1 and the heating chamber 2 are connected to an exhaust pump unit 61 by an exhaust pipe 64 provided with vacuum valves 62 and 63 on the way. The refrigerant shut-off chamber 3 is connected to an exhaust pump unit 65 serving as an exhaust means by an exhaust pipe 67 provided with a vacuum valve 66 in the middle. In the front chamber 1, an elevator 11 for placing and delivering a material to be processed is installed. In addition, a heater 21 having a known structure for heating the material to be processed is installed in the heating chamber 2. Further, a heater 31 for raising the temperature of the room is installed on the chamber wall of the refrigerant shut-off chamber 3 as will be described later.

焼入室４の下半部は冷媒である水を貯留した水槽部４１となっている。水槽部４１内の水はポンプ４２によって熱交換器４３に循環させられて、常に常温に保たれている。また、焼入室４の上半部内には被処理材を搬送する図略のハンガーを昇降させる昇降装置４４が設置されている。ハンガーは、前室１と加熱室２の間の搬送用、加熱室２と冷媒遮断室３と焼入室４の間の搬送用がそれぞれ設けられている。   The lower half of the quenching chamber 4 is a water tank 41 that stores water as a refrigerant. The water in the water tank 41 is circulated to the heat exchanger 43 by the pump 42 and is always kept at room temperature. Further, an elevating device 44 for elevating a hanger (not shown) that conveys the material to be processed is installed in the upper half of the quenching chamber 4. The hanger is provided for conveyance between the front chamber 1 and the heating chamber 2, and for conveyance between the heating chamber 2, the refrigerant blocking chamber 3, and the quenching chamber 4, respectively.

このような焼入装置で焼入処理を行なう場合には、仕切扉５１を開けて昇降台１１に被処理材を載せて上昇させる。仕切扉５１を閉めて前室１内を６Ｐａ程度まで真空引きする。このとき加熱室２内は予め同程度に真空引きされている。前室１内に位置しているハンガーを昇降台１１に合致させ、昇降台１１下降時に被処理材をハンガーへ移行させる。仕切扉５２を開いて被処理材をハンガーで加熱室２内へ搬送し、図略の昇降テーブル上へ置く。その後、ハンガーは前室１に戻され、仕切扉５２が閉じられて、ヒータ２１によって被処理材が１０００℃以上に加熱される。この間に冷媒遮断室３は６Ｐａ程度まで真空引きされている。   When performing the quenching process with such a quenching apparatus, the partition door 51 is opened and the material to be treated is placed on the lifting platform 11 and raised. The partition door 51 is closed and the inside of the front chamber 1 is evacuated to about 6 Pa. At this time, the inside of the heating chamber 2 is evacuated to the same extent in advance. The hanger located in the front chamber 1 is made to coincide with the lifting platform 11, and the material to be processed is transferred to the hanger when the lifting platform 11 is lowered. The partition door 52 is opened, the material to be treated is conveyed into the heating chamber 2 by a hanger, and placed on a lifting table (not shown). Thereafter, the hanger is returned to the front chamber 1, the partition door 52 is closed, and the workpiece is heated to 1000 ° C. or higher by the heater 21. During this time, the refrigerant blocking chamber 3 is evacuated to about 6 Pa.

加熱終了後は仕切扉５３を開放し、冷媒遮断室３内で待機していたハンガーで加熱室２内の被処理材を冷媒遮断室３へ搬送する。その後、仕切扉５３が閉じられて、冷媒遮断室３内が大気圧へ復圧される。焼入室４は大気圧であるから仕切扉５４が開放され、ハンガーによって被処理材は焼入室４に搬送される。この時、焼入室４内に存在する水蒸気が冷媒遮断室３に侵入するが、仕切扉５３が閉じられているから、加熱室２へ水蒸気が侵入することはない。仕切扉５４が閉鎖されて、焼入室４では昇降装置４４によってハンガーに載置されたままで被処理材は水中に浸漬されて焼入れ処理がなされる。   After the heating is finished, the partition door 53 is opened, and the material to be treated in the heating chamber 2 is transported to the refrigerant blocking chamber 3 by the hanger waiting in the refrigerant blocking chamber 3. Thereafter, the partition door 53 is closed and the pressure in the refrigerant shut-off chamber 3 is restored to atmospheric pressure. Since the quenching chamber 4 is at atmospheric pressure, the partition door 54 is opened, and the material to be treated is transferred to the quenching chamber 4 by the hanger. At this time, the water vapor present in the quenching chamber 4 enters the refrigerant shut-off chamber 3, but the water vapor does not enter the heating chamber 2 because the partition door 53 is closed. The partition door 54 is closed, and in the quenching chamber 4, the workpiece is immersed in water while being placed on the hanger by the elevating device 44, and is quenched.

焼入れ処理を終了すると、被処理材を載置したハンガーは昇降装置４４によって水中から引き上げられる。そこで、仕切扉５５を開けてハンガー上から被処理材を装置外へ取り出す。続いて仕切扉５５が閉鎖されるとともに仕切扉５４が開放されてハンガーが冷媒遮断室３内へ戻され、仕切扉５４が再び閉鎖される。そしてヒータ３１に通電されて冷媒遮断室３内が、水分が凝縮しない５０℃以上、好ましくは１００℃以上に昇温される。同時に冷媒遮断室３内は６Ｐａ程度まで真空引きされる。これにより、焼入室４から侵入した水蒸気は冷媒遮断室３に残留することなく全て排出される。したがって、次の処理サイクルで仕切扉５３が開いても加熱室２内へ水蒸気が侵入することはない。   When the quenching process is finished, the hanger on which the material to be treated is placed is pulled up from the water by the lifting device 44. Therefore, the partition door 55 is opened and the material to be processed is taken out of the apparatus from the hanger. Subsequently, the partition door 55 is closed, the partition door 54 is opened, the hanger is returned into the refrigerant shut-off chamber 3, and the partition door 54 is closed again. The heater 31 is energized, and the temperature in the refrigerant shut-off chamber 3 is raised to 50 ° C. or higher, preferably 100 ° C. or higher, at which moisture does not condense. At the same time, the inside of the refrigerant blocking chamber 3 is evacuated to about 6 Pa. Thereby, all the water vapor entering from the quenching chamber 4 is discharged without remaining in the refrigerant blocking chamber 3. Therefore, even if the partition door 53 is opened in the next processing cycle, water vapor does not enter the heating chamber 2.

このようにして、焼入室４で生じた水蒸気は冷媒遮断室３までしか侵入せず、しかも冷媒遮断室３から全て装置外へ排出されるから、加熱室２内へ水蒸気が侵入して雰囲気を汚染したり、カーボンヒータ等の酸化損耗を生じることは無い。なお、本実施形態では焼入室４を大気圧としたが、窒素や圧縮空気を供給して焼入室４の室内圧を０．１ＭｐａＧ〜０．２ＭＰａＧ程度まで大気圧より高くしておくと、水槽部４１の水の蒸発を抑えることができるとともに焼入れ性をさらに向上させることができる。   In this way, the water vapor generated in the quenching chamber 4 penetrates only to the refrigerant shut-off chamber 3 and is exhausted from the refrigerant shut-off chamber 3 to the outside of the apparatus. There is no contamination or oxidative wear of the carbon heater or the like. In the present embodiment, the quenching chamber 4 is set to atmospheric pressure. However, when nitrogen or compressed air is supplied to increase the indoor pressure of the quenching chamber 4 to about 0.1 MpaG to 0.2 MPaG, The evaporation of water in the portion 41 can be suppressed and the hardenability can be further improved.

（参考例）
焼入用冷媒として油を使用した場合には焼入れ装置の全体構成は図２に示すようなものになる。この場合、焼入室４の下半部は冷媒である油を貯留した油槽部４５となっている。油槽部４５内の油はポンプ４２によって熱交換器４３に循環させられて、常に２００℃程度に保たれている。また、焼入室４は途中に真空弁６８を介設した排気管６７によって排気手段たる排気用ポンプユニット６５に連結されている。加熱室２と焼入室４の間に位置する冷媒遮断室３の室壁には室内を５℃程度に維持するために冷却手段たるチラー水循環式の冷却ジャケット３２が設置されている。また、冷媒遮断室３の底壁には真空弁３３を介設した油排出路たるドレン管３４が連結されている。他の構成は上記実施形態と同様である。 (Reference example)
When oil is used as the quenching refrigerant, the entire configuration of the quenching apparatus is as shown in FIG. In this case, the lower half of the quenching chamber 4 is an oil tank 45 that stores oil as a refrigerant. The oil in the oil tank 45 is circulated to the heat exchanger 43 by the pump 42 and is always kept at about 200 ° C. The quenching chamber 4 is connected to an exhaust pump unit 65 as exhaust means by an exhaust pipe 67 provided with a vacuum valve 68 in the middle. A chiller water circulation type cooling jacket 32 as a cooling means is installed on the chamber wall of the refrigerant shut-off chamber 3 located between the heating chamber 2 and the quenching chamber 4 in order to maintain the room at about 5 ° C. In addition, a drain pipe 34 serving as an oil discharge path with a vacuum valve 33 interposed is connected to the bottom wall of the refrigerant shut-off chamber 3. Other configurations are the same as in the above embodiment.

このような焼入装置で焼入処理を行なう場合には、仕切扉５１を開けて昇降台１１に被処理材を載せて上昇させる。仕切扉５１を閉めて前室１内を６Ｐａ程度まで真空引きする。このとき加熱室２内は予め同程度に真空引きされている。前室１内に位置しているハンガーを昇降台１１に合致させ、昇降台１１下降時に被処理材をハンガーへ移行させる。仕切扉５２を開いて被処理材をハンガーで加熱室２内へ搬送し、図略の昇降テーブル上へ置く。その後、ハンガーは前室１に戻され、仕切扉５２が閉じられて、ヒータ２１によって被処理材が１０００℃以上に加熱される。この間に冷媒遮断室３も６Ｐａ程度まで真空引きされている。   When performing the quenching process with such a quenching apparatus, the partition door 51 is opened and the material to be treated is placed on the lifting platform 11 and raised. The partition door 51 is closed and the inside of the front chamber 1 is evacuated to about 6 Pa. At this time, the inside of the heating chamber 2 is evacuated to the same extent in advance. The hanger located in the front chamber 1 is made to coincide with the lifting platform 11, and the material to be processed is transferred to the hanger when the lifting platform 11 is lowered. The partition door 52 is opened, the material to be treated is conveyed into the heating chamber 2 by a hanger, and placed on a lifting table (not shown). Thereafter, the hanger is returned to the front chamber 1, the partition door 52 is closed, and the workpiece is heated to 1000 ° C. or higher by the heater 21. During this time, the refrigerant blocking chamber 3 is also evacuated to about 6 Pa.

加熱終了後は仕切扉５３を開放し、冷媒遮断室３内で待機していたハンガーで加熱室２内の被処理材を冷媒遮断室３へ搬送する。その後、仕切扉５３が閉じられる。焼入室４はこの間に６Ｐａ程度まで真空引きされており、仕切扉５４が開放されて、ハンガーによって被処理材は焼入室４に搬送される。この時、焼入室４に存在する油蒸気が冷媒遮断室３内に侵入するが、仕切扉５３が閉じられているから、加熱室２へ油蒸気が侵入することはない。その後、仕切扉５４が閉鎖され、昇降装置４４によってハンガーに載置されたままで被処理材は油中に浸漬されて焼入れ処理がなされる。   After the heating is finished, the partition door 53 is opened, and the material to be treated in the heating chamber 2 is transported to the refrigerant blocking chamber 3 by the hanger waiting in the refrigerant blocking chamber 3. Thereafter, the partition door 53 is closed. The quenching chamber 4 is evacuated to about 6 Pa during this period, the partition door 54 is opened, and the material to be treated is conveyed to the quenching chamber 4 by the hanger. At this time, the oil vapor existing in the quenching chamber 4 enters the refrigerant blocking chamber 3, but the oil vapor does not enter the heating chamber 2 because the partition door 53 is closed. Thereafter, the partition door 54 is closed, and the material to be treated is immersed in oil while being placed on the hanger by the elevating device 44 and subjected to quenching.

焼入れ処理を終了した後は、被処理材を載置したハンガーは昇降装置４４によって油中から引き上げられる。そこで、焼入室４内を大気へ復圧し、仕切扉５５を開けてハンガー上から被処理材を装置外へ取り出す。その後、仕切扉５５を閉鎖して再び焼入室４を６Ｐａ程度まで真空引きし、仕切扉５４を開いてハンガーを冷媒遮断室３内へ戻す。そして、仕切扉５４が閉鎖される。ここで、冷媒遮断室３は５℃程度に冷却されているから、焼入室４から侵入した油蒸気は凝縮して液体となり、ドレン管３４を経て冷媒遮断室３に残留することなく全て排出される。したがって、次の処理サイクルで仕切扉５３が開いても加熱室２内へ油蒸気が侵入することはない。   After the quenching process is completed, the hanger on which the material to be processed is placed is pulled up from the oil by the lifting device 44. Therefore, the pressure in the quenching chamber 4 is restored to the atmosphere, the partition door 55 is opened, and the material to be treated is taken out from the hanger. Thereafter, the partition door 55 is closed and the quenching chamber 4 is again evacuated to about 6 Pa, the partition door 54 is opened, and the hanger is returned into the refrigerant shut-off chamber 3. Then, the partition door 54 is closed. Here, since the refrigerant shut-off chamber 3 is cooled to about 5 ° C., the oil vapor that has entered from the quenching chamber 4 condenses into a liquid, and is completely discharged through the drain pipe 34 without remaining in the refrigerant shut-off chamber 3. The Therefore, even if the partition door 53 is opened in the next processing cycle, the oil vapor does not enter the heating chamber 2.

このようにして、焼入室４で生じた油蒸気は冷媒遮断室３までしか侵入せず、しかも冷媒遮断室３から全て装置外へ排出されるから、加熱室２内へ油蒸気が侵入して雰囲気を汚染したり、蒸着炭化によるヒータ部の絶縁破壊等を生じることは無い。なお、本参考例では焼入室４を真空雰囲気として油冷媒中の脱気を図ったが、焼入れ性の向上が必要な場合には、窒素や圧縮空気を供給して焼入室４の室内圧を０．１ＭｐａＧ〜０．２ＭＰａＧ程度まで大気圧より高くしておくのが良い。   In this way, the oil vapor generated in the quenching chamber 4 penetrates only to the refrigerant shut-off chamber 3 and is exhausted from the refrigerant shut-off chamber 3 to the outside of the apparatus, so that the oil vapor enters the heating chamber 2. It does not pollute the atmosphere or cause dielectric breakdown of the heater due to vapor deposition carbonization. In this reference example, the quenching chamber 4 is used as a vacuum atmosphere to deaerate the oil refrigerant. However, when it is necessary to improve hardenability, nitrogen or compressed air is supplied to increase the pressure in the quenching chamber 4. It is good to make it higher than atmospheric pressure to about 0.1 MpaG-0.2 MPaG.

上記実施形態および参考例において、焼入室４に水槽部４１や油槽部４５を設けず、被処理材に水や油の冷媒を直接吹きつけることによって焼入れを行うようにしても良い。   In the embodiment and the reference example, the quenching chamber 4 may not be provided with the water tank portion 41 or the oil tank portion 45, and the quenching may be performed by directly blowing water or oil refrigerant onto the material to be treated.

２…加熱室、３…冷媒遮断室、３１…ヒータ（加熱手段）、４…焼入室、４１…水槽部、５３…仕切扉（第１仕切扉）、５４…仕切扉（第２仕切扉）、６５…排気用ポンプユニット（排気手段）。 DESCRIPTION OF SYMBOLS 2 ... Heating chamber, 3 ... Refrigerant shut-off chamber, 31 ... Heater (heating means), 4 ... Quenching chamber, 41 ... Water tank part, 53 ... Partition door (1st partition door), 54 ... Partition door (2nd partition door) 65 ... Pump unit for exhaust (exhaust means).

Claims (1)

被処理材を加熱処理する加熱室と加熱処理した被処理材を水冷媒で焼入れ処理する焼入室とを備え、前記加熱室と前記焼入室の間に冷媒遮断室を設けるとともに、当該冷媒遮断室を第１仕切扉および第２仕切扉によってそれぞれ前記加熱室および前記焼入室と遮断可能となし、かつ前記冷媒遮断室を加熱する加熱手段と、冷媒遮断室を排気する排気手段を設けたことを特徴とする焼入れ装置。 A heating chamber for heat-treating the material to be treated; a quenching chamber for quenching the heat-treated material to be treated with water refrigerant; and a refrigerant shut-off chamber provided between the heating chamber and the quenching chamber, and the refrigerant shut-off chamber The first partition door and the second partition door can be cut off from the heating chamber and the quenching chamber, respectively, and heating means for heating the refrigerant shut-off chamber and exhaust means for exhausting the refrigerant shut-off chamber are provided. A quenching device.
JP2009172593A 2009-07-24 2009-07-24 Hardening apparatus Pending JP2011026653A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8828602B2 (en) 2009-12-01 2014-09-09 Samsung Sdi Co., Ltd. Secondary battery with electrode leads at an outer side of a battery case
CN109161664A (en) * 2018-11-12 2019-01-08 马鞍山沐及信息科技有限公司 A kind of steel quenching Special cooling device
RU2755357C1 (en) * 2020-11-09 2021-09-15 Федеральное государственное бюджетное образовательное учреждение высшего образования. "Юго-Западный государственный университет" (ЮЗГУ) Unit for quenching steel parts

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8828602B2 (en) 2009-12-01 2014-09-09 Samsung Sdi Co., Ltd. Secondary battery with electrode leads at an outer side of a battery case
CN109161664A (en) * 2018-11-12 2019-01-08 马鞍山沐及信息科技有限公司 A kind of steel quenching Special cooling device
RU2755357C1 (en) * 2020-11-09 2021-09-15 Федеральное государственное бюджетное образовательное учреждение высшего образования. "Юго-Западный государственный университет" (ЮЗГУ) Unit for quenching steel parts

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